Solution for treating photographs and process of preparing the same



Patented May 19, 1925.

UNITED flsr Are-s- PATENT OFFICE.

CLARENCE RUDOLPH REIERSON, or HAVRE, MONTANA.

SOLUTION FOR TREATING PHOTOGRAPHS AND PROCESS OF PREPARING THE SAME.

No Drawing. Original application filed August 2, 1922, vSerial No. 579,244. Divided and this application filed :October 25, 1923. Serial No. 670,715.

.and State of Montana, have invented new I and useful Improvements in Solutions for heretofore been known.

Treating Photographs and Processes of Preparing the Same, of which the followingis a specification. a

This invention relates to the decoration of photographs and pertains particularly to a liquid preparation used in the production of oil colored photographs. Among other features the invention is directed to the use of particular materials and to the steps in the process by which the materials are prepared. The particular sequence in which the materials are used in COlOIHI ohotographs with oilcolors is claimed in my copending application Serial No. 579,244, filed August 2, 1922, from which this applica-. tion has been divided.

One purpose of the invention is to reduce the time necessary to complete the application of oil colors 'to a photographic print. Another ,purposeis to make possible a more even blending (0f oil colors than has Another purpose is to provide a lustrous finish for photographic .print-s without destroying the soft tone of the print. Finally the. invention enables the artist to workrapidly without the smearing of oil colors, and makes it possible tocomplete the work in a remarkably short time.

Heretofore to complete the coloring of an average sized photographic print it has not been possible in less than from one to three hours, and after the completion of the coloring step two or three days have been usually required toproperly dry the work. The details of the present invention enable the average artist to color with oil paint a photograph in fifteen or twenty minutes, and the work thus completed will dry within seven to ten hours. Thus a dozen photographs could be colored in oil in one evening, and could be dry by morning, when First, the, materials and the, process of preparingthe materials into a composition for application directly to the photographic print. This is the present invention.

Second, the process of preparing the photographic print with the completed mate rial of the first feature in order to make the print ready for receiving the decorative paint coating. of my application, Serial No. 579,244, filed August 2, 1922, from which this has been divided.

Third, the materials and the process of preparing the mixture of the same for the outer and final protective coating which is applied :to the decorative paint coats. This was originally claimedin my application, Serial No. 579214, filed August 2, 1922.

The details of these three features will now be described.

The first feature, which includes the preparation and materials for the initial treating material, relates to a. liquid which, when addedto the oil and thoroughly mixed. To

the resultant product the specified proportion of ether is added, and the resultant material is thoroughly mixed. Care should be taken to use sul'istantially the proportions and sequence specified because a perfectly acting solution may be prepared in this way, but if the proportions and order of treatment are materially disregarded, un-

desirable precipitates may be formed and the materials spoiled.

The treatment of the photographic print should be conducted substantially according to the following details. The solution prepared in accordance with feature one,

should be applied to the dried emulsion which is the surface of the print with a tuft of cotton or .some other equally soft material, and any surplus solution, which has not been absorbed by the emulsion on the print must be rembved by rubbing the This is the invention the oil and drier with the material of the dried emulsion. The ultimate effect, regardless of the theory of the action, is that the material sizes the dried emulsion,

or so prepares it, as to make possible the application and blending thereon of artists oil colors in tubes evenly, smoothly, and without smearing, all to a degree of perfection heretofore not possible before the use of the particular solution mentioned. lVhen oil colors are applied to a print or to a dried emulsion to which oil has been applied in a manner different from the above described, the application of the material is not even or smooth, the oil rubs oil and smears, and the oil colors also tend to rub off and smear.

The apan drier, probably augmented by the action of the ether, serves to make possible unusual rapidity on the part of the artist who is applying the oil colors because the artist is enabled to have the oil colors under control at all times, and also because the completed work dries rapidly. The drying qualities are just such as to cause the colors to take hold without running or smearing, and yet the colors do not set so rapidly as to take the control of the work out of the artists hands.

Feature three, relating to the protecting coating, will now be described. This material is intended for use as a protective lustre producing material for application directly over the oil colored photograph. The object of this feature of the invention is to provide a liquid, which when properly applied to a completed oil colored photograph, adds the desired lustre and gives to it an unnoticeable, even, protective covering. To make this solution 5 parts of raw linseed oil and 1 part of japan drier are thoroughly mixed. The material is applied to the decorative paint coat on the photographic print by the use of a tuft of cotton,

and any surplus solution must be removed by rubbing gently with a similar dry tuft of cotton. The effect of the application of the protective coating is the production of a rapidly drying, unnoticeable coating which protects against dust, dirt, and the fading of the color coat. The desired lustre may thus be added to the completed work of the color coat without destroying the softer tones of the colored photograph. The same advantageous results obtained by using the protective coat may be accomplished by using the solution upon black and white, or

sepia prints, as have been described by using the material over prints finished in oil colors.

The various features of this invention may be used, and the materials of each of the solutions may be applied effectively, in the treatment of matt, semi-matt, or gloss photographic prints, as well as in the making of Doretypes.

By following the details of the present invention a photographic print may be colored and the coloring protected so that the final product has such a perfect blending of color that the lines of the colors and the material of the protective coat are imperceptible. In addition to the proper blending, the time for the coloring is reduced to one-fifth to one-eighth of the time ordinarily required prior to the use of the initial treatment solution.

I claim 1. The process of preparing a liquid coating composition for treating photographic prints to prepare such prints for the reception of oil paints which process comprises thoroughly mixing japan drier and linseed oil, and adding to the resultant mixture ether and thoroughly mixing the resultant solution.

2. The process of preparing a liquid coating composition for treating photographic print-s which comprises thoroughly mixing 3 parts japan drier with 3 parts of raw linseed oil, and adding to this mixture 2 parts of ether and thoroughly mixing the resultant solution.

3. A liquid coating composition for treating photographic prints to prepare such prints for the reception of oil paints which composition consists entirely of a mixture of raw linseed oil, a liquid drier, and ether.

at. A liquid coating composition for treating photographic prints to prepare such prints for the reception of oil paints which composition consists entirely of a mixture of linseed oil, japan drier, and ether.

5. A liquid coating composition for treating photographic prints to prepare such prints for the reception of oil paints which composition consists entirely of a mixture of raw linseed oil, japan drier, and ether.

6. A liquid coating composition for treat ing photographic prints which composition comprises a mixture of raw linseed oil. japan drier, and ether in the proportion of 3 parts of linseed oil, 3 parts of drier and 2 parts of ether.

In testimony whereof I aflix my signature.

CLARENCE RUDOLPH REIERSON. 

